JP6321304B2 - Techniques for resolving conflicting rules when measuring cells for reselection - Google Patents

Description

Cross-reference of related applications

  [0001] This patent application is filed on Feb. 23, 2015, assigned to this assignee and specifically incorporated herein by reference, entitled “TECHNIQUES FOR RESOLVING CONFLICTING RULES IN MEASURING CELLS FOR RESELECTION”. Claims priority of non-provisional application number 14 / 629,224.

  [0002] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcast. A typical wireless communication system may employ multiple access technologies that can support communication with multiple users by sharing available system resources (eg, bandwidth, transmit power). Examples of such multiple access techniques are code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency. Division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.

  [0003] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that allows different wireless devices to communicate on a city, national, regional, and even global scale. . An example of a telecommunication standard is Long Term Evolution (LTE (registered trademark)). LTE is an extended set of universal mobile telecommunications system (UMTS) mobile standards published by the 3rd Generation Partnership Project (3GPP®). In general, a wireless multiple-access communication system can simultaneously support communication for multiple wireless terminals (eg, user equipment (UE)), each of which can operate on one downlink or uplink resource. One or more base stations can be in communication, where the base station can generate resource grants for downlink or uplink resources to communicate with wireless terminals.

  [0004] Various mechanisms exist in LTE that define UE frequency prioritization or deprioritization in measuring cells for reselection. For example, the UE may prioritize the frequency previously used to communicate with a closed subscriber group (CSG) cell when measuring a cell for reselection regardless of the priority of other indicated cells. You can raise your rank (prioritize). In another example, the UE may raise the priority of the multimedia broadcast multicast service (MBMS) frequency during the MBMS session regardless of the other indicated cell priorities. Further, for example, when measuring a cell for reselection, the UE may have one or more priorities for deprioritizing one or more frequencies in a radio resource control (RRC) connection reject message. A down command may be received. Although UEs currently lower such frequency priorities when measuring cells without configuring other rules that increase frequency priorities, such behavior is not always desirable.

  [0005] The following presents a simplified summary of such aspects in order to provide a basic understanding of one or more aspects. This summary is not an extensive overview of all intended aspects, it is intended to identify key or critical elements of all aspects or to delineate the scope of any or all aspects. Not done. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

  [0006] According to an example, a method is provided for determining a frequency for measuring a cell in reselection. The method raises the priority of a set of frequencies that measure a cell for reselection, where one or more first frequencies in the set of frequencies are previously visited closed subscriptions. Receiving a command to lower the priority of one or more second frequencies for reselection, corresponding to a frequency of a group of users (CSG) cells, and prioritizing frequency based at least in part on the command Determining whether to lower the priority of one or more second frequencies in the ranked set. The method measures one or more cells over a prioritized set of frequencies based at least in part on each priority of the set of frequencies, and selects one or more cells for reselection. It can further include evaluating.

  [0007] In another example, an apparatus for determining a frequency for measuring a cell in reselection is provided, which is configured to prioritize a set of frequencies for measuring a cell for reselection. Frequency priority component, wherein one or more first frequencies in the set of frequencies correspond to a frequency of a previously visited CSG cell, and one or more second frequencies for reselection Receiving a command to lower the priority of the first and determining whether to lower the priority of one or more second frequencies in the set of prioritized frequencies based at least in part on the command Includes a priority lowering command receiving component. The apparatus measures one or more cells over a frequency prioritized set based at least in part on a respective priority of the set of frequencies and evaluates the one or more cells for reselection. A cell reselection component configured as described above.

  [0008] In yet another example, a method is provided for determining a frequency for a measurement cell in reselection. The method raises the priority of a set of frequencies that measure cells for reselection, wherein one or more first frequencies in the set of frequencies is a multimedia broadcast multicast service (MBMS) frequency. Receiving a command corresponding to a cell to lower the priority of one or more second frequencies for reselection, and in a set that has been prioritized for frequency based at least in part on the command; Determining whether to lower the priority of one or more of the second frequencies. The method measures one or more cells over a prioritized set of frequencies based at least in part on each priority of the set of frequencies, and selects one or more cells for reselection. It can further include evaluating.

  [0009] In another example, an apparatus for determining a frequency for measuring a cell in reselection is provided, which is configured to prioritize a set of frequencies for measuring a cell for reselection. Frequency priority component, wherein one or more first frequencies in the set of frequencies correspond to MBMS frequencies, to lower the priority of one or more second frequencies for reselection And a priority configured to determine whether to lower the priority of one or more second frequencies in the set of prioritized frequencies based at least in part on the command Includes a down command receiving component. The apparatus measures one or more cells over a frequency prioritized set based at least in part on a respective priority of the set of frequencies and evaluates the one or more cells for reselection. A cell reselection component configured as described above.

  [0010] To achieve the foregoing and related objectives, one or more aspects comprise the features fully described below and specifically set forth in the claims. The following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. However, these features are only a few of the various ways in which the principles of various aspects may be used, and this description is intended to include all such aspects and their equivalents. .

[0011] FIG. 1 is a block diagram illustrating an example wireless communication system for performing cell reselection. [0012] FIG. 2 is a flow diagram including a plurality of functional blocks representing an exemplary method for prioritizing a set of frequencies for measuring a cell in cell reselection. [0013] FIG. 3 is a flow diagram including a plurality of functional blocks representing an exemplary method for prioritizing a set of frequencies for measuring a cell in cell reselection. FIG. 4 is a diagram illustrating an example of hardware implementation for an apparatus using a processing system. [0015] FIG. 5 is a diagram illustrating an example of an evolved Node B and user equipment in an access network.

Detailed description

  [0016] The detailed description set forth below in connection with the appended drawings is intended as a description of various configurations, and represents the only configurations in which the concepts described herein may be implemented. Not intended. The detailed description includes specific details for the purpose of providing a thorough understanding of various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some instances, well-known components are shown in block diagram form in order to avoid obscuring such concepts. Further, in one aspect, it can be understood that a component can generally be one of the parts that make up the system, can be hardware or software, and / or can be divided into other components.

  [0017] If a command is received to lower the priority of one or more frequencies, including one or more frequencies, the set of frequencies for measuring the cell when performing cell reselection. Various aspects related to raising the priority are described herein. For example, cell reselection can substantially include any reselection mechanism, where a UE communicating with a network in idle mode (eg, to receive broadcast and / or paging signals) Measure neighboring cells that provide wireless network access on one or more frequencies, evaluate one or more cells (eg, according to service provided, signal quality of various other configurations), (eg, It may be determined whether to connect to one or more cells to receive wireless network access (instead of or in addition to the serving cell). For example, cell reselection may correspond to cell reselection in idle mode in 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE). In addition, a command for lowering the priority of one or more frequencies (also referred to herein as a priority reduction command) may be used in subsequent measurements of one or more frequencies as part of cell reselection. It may relate to commands received from the serving network node to lower the priority of one or more frequencies. For example, the command may relate to a radio resource control (RRC) connection reject message that includes an indication of one or more frequencies to be lowered in priority. In a specific example, the 3GPP Technical Specification (TS) 36.304 section 5.2.4.1 generally states that if the UE receives an RRCConnectionReject along with the depreciationReq, the UE will continue to operate while the timer T325 is running. The carrier frequency and stored frequency or any evolved universal mobile telecommunications system (UMTS) terrestrial radio access (EUTRA) frequency can be considered to be the lowest priority frequency.

  [0018] In one example, the prioritized set of frequencies may include frequencies that the UE considers preferable for performing cell reselection. For example, this may be one or more frequencies used in communicating with one or more closed subscriber group (CSG) cells, or one or more multimedia broadcast multicast services (if an MBMS session is in progress). MBMS) frequency, etc. In one example, 3GPP TS 36.304 section 5.2.2.4.8.1 is generally autonomous in addition to cell reselection to detect CSG member cells that the UE has visited at least previously on non-serving frequencies. A search function can be used, and if the UE detects one or more suitable CSG cells on these frequencies, the UE is independent of the frequency priority of the non-CSG cell that the UE is currently camping on. Indicates that you can reselect. Section 5.2.4.1 generally indicates that the current serving frequency can be considered the highest priority frequency when the UE reselects between CSG cells. Thus, for example, in any case, non-serving or serving frequencies can be prioritized within a set that has been prioritized for frequency in this respect. Section 5.2.4.1 also generally allows the UE to continue with the MBMS service and is interested in receiving or receiving the MBMS service, and the MBMS service to the frequency on which it is provided. If it can be received while camping, the UE indicates that the frequency may be considered the highest priority in the MBMS session. Thus, for example, such MBMS frequencies can be prioritized within a set that has been prioritized for frequency in this respect.

  [0019] Thus, for example, the UE may determine whether to lower the priority of one or more frequencies in a set that has been prioritized for frequency based on a priority reduction command. For example, this may include determining to lower the priority of one or more frequencies based on the command and regardless of the priority of the frequency, such as a CSG or MBMS frequency. In another example, a UE may prioritize one or more frequencies in a frequency prioritized set based on frequency priorities, such as CSG or MBMS, and regardless of a request to lower priority. It can be determined by raising the ranking. In another example, the frequency priority is raised based at least in part on the configuration indicating whether the UE considers a priority reduction request rather than a CSG or MBMS priority (and vice versa). It may be decided whether to increase the priority of one or more frequencies in the set. In yet another example, the UE may use 1 for one or more thresholds in determining whether to lower the priority of one or more frequencies in the set that has been prioritized for frequency based on the command. More than one communication parameter can be evaluated.

  [0020] Referring to FIGS. 1-3, aspects are described with reference to one or more components and one or more methods that may perform the actions or functions described herein. Although the operations described below in FIGS. 2 and 3 are shown as being performed in a particular order and / or by exemplary components, the components that perform actions and the order of actions vary depending on the implementation. It should be understood that it can be done. Further, the following actions or functions may be a specially programmed processor, a processor executing specially programmed software or a computer readable medium, or a hardware component capable of performing the described actions or functions and / or Or it should be understood that it may be implemented by any other combination of software components.

  [0021] FIG. 1 is a schematic diagram illustrating a system 100 for wireless communication, according to an example configuration. FIG. 1 includes a UE 102 that communicates with one or more network nodes 104 to access a wireless network. Although one UE 102 and one network node 104 are shown, multiple UEs 102 can communicate with network node 104, UE 102 can communicate with multiple network nodes 104, and / or the like Should be understood. Further, it should be understood that UE 102 may be virtually any network device that can receive resources for communicating with network node 104. Similarly, network node 104 can be virtually any network node that generates resource grants to allow one or more devices to communicate with them.

  [0022] The UE 102 may include a communication component 110 for managing communication with one or more network nodes 104, which may be associated with one or more network nodes 104 (eg, as the UE 102 moves within a mobile network). , And / or cells thereof). The communication component 110 may provide a frequency priority component 112 for determining a prioritized set 114 of frequencies for measuring cells in cell reselection, a priority reduction command associated with one or more frequencies. Decrease command receiving component 116 for receiving, and measuring cells for reselection, performing autonomous search function, evaluating cells for reselection, and reselecting for one or more cells Cell reselection component 118 to perform, or other procedures related to cell reselection, etc. The cell reselection component 118 is for receiving one or more rules related to whether to consider a command for lowering the priority of one or more frequencies in the frequency prioritized set 114. Between the UE 102 and the network node in deciding whether to take into account the rule receiving component 120 and / or a command to lower the priority of one or more frequencies in the frequency prioritized set 114 A parameter evaluation component 122 may optionally be included to evaluate one or more parameters of the communication.

  [0023] The network node 104 may also include a communication component 130 for communicating with one or more UEs 102, for example, to transmit one or more broadcast or dedicated signals. Whether communication component 130 considers a command to lower one or more frequency priorities in determining a prioritized set of frequencies to measure in a cell reselection / autonomous selection function A rule providing component 132 for providing one or more rules to one or more UEs associated with the can be included.

  [0024] The UE 102 is, for example, a smartphone, a cellular phone, a mobile phone, a laptop computer, a tablet computer, or another device (eg, a modem connected to a computer) a wristwatch, a personal digital assistant, a personal monitoring device, a machine monitoring device May include any type of mobile device, such as, but not limited to, other portable networked devices that can be stand-alone devices, tethered to machine-to-machine communication devices, etc. In addition, the UE can also be used by those skilled in the art to mobile stations, subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, mobile communication devices, wireless devices, wireless communication devices, remote devices, mobile subscriptions. May be referred to as a mobile station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, terminal, user agent, mobile client, client, or some other suitable terminology. In general, the UE is sufficiently lightweight and small enough to be considered portable and uses one or more over-the-air (OTA) communication protocols described herein. It may be configured to communicate wirelessly via an OTA communication link. Further, in some examples, the UE may be configured to facilitate communication over multiple separate networks via multiple separate subscribers, multiple radio links, and / or the like.

  [0025] Further, the network node 104 includes a base station (BS), a node B, an eNodeB (eNB), a relay, a peer-to-peer device, an authentication, an authorization, an accounting (AAA) server, a mobile switching center (MSC), and mobility management. It may comprise one or more of any type of network modules such as macro cells, access points, including entities (MMEs), radio network controllers (RNCs), small cells, etc. As used herein, the term “small cell” refers to the corresponding coverage area of an access point or access point, where the access point in this case is, for example, the coverage area of a macro cell or macro network access point Or it has a relatively small coverage or a relatively low transmission power compared to the transmission power. For example, a macrocell may cover a relatively large geographic area, such as, but not limited to, a few kilometers radius. In contrast, a small cell may cover a relatively small geographic area, such as, but not limited to, a home, a building, or a building floor. Thus, a small cell can include devices such as BS, access point, femto node, femto cell, pico cell, micro node, node B, eNB, home node B (HNB), home evolved node B (HeNB). Including, but not limited to. Thus, the term “small cell” as used herein refers to a cell with a relatively low transmit power and / or a relatively narrow coverage area compared to a macro cell. Further, the network node may communicate with one or more other network nodes of the wireless and / or core network.

  [0026] Further, the system 100 can be a wide area network (WAN), a wireless network (eg, 802.11 or cellular network), a public switched telephone network (PSTN) network, an ad hoc network, a personal area network (eg, Bluetooth (registered) Trademark)), or any other combination or permutations of network protocols and network types, but not limited to. Such network (s) may include a single local area network (LAN) or wide area network (WAN), or a combination of LANs or WANs, such as the Internet. Such a network comprises a wideband code division multiple access (W-CDMA®) system and may communicate with one or more UEs according to this standard. Those skilled in the art will readily recognize that the various aspects described herein can be extended to other telecommunications systems, network architectures, and communication standards. By way of example, various aspects include time division synchronous code division multiple access (TD-SCDMA), high speed downlink packet connection (HSDPA), high speed uplink packet connection (HSUPA), high speed packet connection plus (HSPA +), and time division. It can be extended to other Universal Mobile Telecommunications System (UMTS) systems, such as CDMA (TD-CDMA). Various aspects also include long term evolution (LTE) (in frequency division duplex (FDD), time division duplex (TDD), or both modes), LTE-advanced (in FDD, TDD, or both modes). (LTE-A), CDMA2000, Evolution Data Optimized (EV-DO), Ultra Mobile Broadband (UMB), American Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX (registered trademark) )), IEEE 802.20, Ultra Wide Band (UWB), Bluetooth, and / or other suitable systems. The actual telecommunication standard, network architecture, and / or communication standard used will depend on the overall design constraints imposed on the system and the specific application. Various devices (eg, UE 102 and / or network node 104) coupled to the network (s) may be coupled to the core network via one or more wired or wireless connections.

  [0027] FIG. 2 illustrates a method 200 for prioritizing a set of frequencies for measuring a cell in cell reselection. The method 200 includes, in block 202, increasing the priority of the set of frequencies that measure the cells for reselection, wherein one or more first frequencies in the set of frequencies are CSG cells. Corresponding to The frequency priority component 112 can increase the priority of a set of frequencies that measure the cells for reselection (e.g., in the frequency prioritized set 114), where the set of frequencies One or more of the first frequencies corresponds to a CSG cell. For example, one or more first frequencies may be preferred over other frequencies when measuring a cell for reselection such as a CSG cell. , The serving frequency with which UE 102 communicates with the CSG cell (in idle or active mode) (eg, network node 104 provides the CSG cell), UE 102 has previously successfully communicated with the CSG cell (eg, herein One or more frequencies (also referred to as UEs 102 visiting the CSG cell), etc. CSG cells support closed access cells (eg, as opposed to open access cells), hybrid access cells that allow prioritized access to member UEs and non-member UEs, and / or the like It should be understood that it can.

  [0028] Further, in one example, the frequency prioritized set 114 may include other network nodes or network nodes 104 (eg, in SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, etc. as defined in LTE). May include one or more frequencies indicated in the priority of system information block (SIB) broadcasts, one or more frequencies indicated in dedicated signaling from network nodes, and so on. In this case, for example, the frequency priority component 112 may have one or more corresponding CSG cells than shown in the signaling from the network node 104 in raising the priority of the frequency-enhanced set 114. The priority of the first frequency may be increased. This raises the priority of one or more first frequencies in the prioritized set 114 of frequencies and / or generates another set of frequencies to be measured before that set. Can include.

  [0029] The method 200 may also include, at block 204, receiving a command to lower the priority of one or more second frequencies for reselection. The lower priority command receiving component 116 may receive a command to lower the priority of one or more second frequencies for reselection. As described, for example, the lower priority command receiving component 116 may request a command in the RRCConnectionReject indicating that the priority of the serving frequency, one or more additional frequencies, the entire EUTRA frequency, and / or the like is to be reduced. A message can be received from the network node 104. Further, for example, the lower priority command receiving component 116 determines a time to decrease the priority of the indicated frequency (eg, a T325 timer), which is the time configured at the UE 102, the network node 104 or other network node. The time constituted by, etc. Further, the frequency priority component 112 may conventionally update the frequency prioritized set 114 based at least in part on the one or more second frequencies indicated by the command, and / or Alternatively, it is understood that one or more second frequencies may be stored in a separate prioritization list (not shown) for later lowering of the frequency priorities within the frequency prioritized set 114. Should be done, where the frequency is also in the de-priority list.

  [0030] In any case, if the lower priority command indicates one or more frequencies that have been prioritized as CSG frequencies, the UE 102 reselects for a cell on another frequency according to the lower priority command. However, UE 102 may then prioritize the CSG frequency and perform reselection for cells on the CSG frequency. UE 102 may then receive again a de-priority command for the CSG frequency (or otherwise determine that it should still be de-prioritized based on the timer with which the CSG frequency is associated), And may reselect for cells on other frequencies, etc. Accordingly, as further described herein, the cell reselection component 118 can determine whether to follow or ignore a priority reduction command for a frequency that has been prioritized as a CSG frequency.

  [0031] Accordingly, the method 200 determines, at block 206, whether to lower the priority of one or more second frequencies in the set that has been prioritized for frequency based at least in part on the command. Can include. The lower priority command receiving component 116 may determine whether to lower the priority of the one or more second frequencies in the prioritized set 114 of frequencies based at least in part on the command. it can. For example, if the lower priority command receiving component 116 decides to lower the frequency priority based on the command, lowering the command priority may be one or more in the frequency prioritized set 114. Decreasing the priority of the second frequency (eg, one or more of the sets in the set that modifies the order of the prioritized set of frequencies if the set is in priority-based order accordingly If the list is used to perform one or more functions such as measuring a cell for reselection, etc., one or more second A lower priority command receiving component 116 may be included that refrains from considering frequency, etc.

  [0032] The method 200 may also include, at block 208, measuring one or more cells on the frequency prioritized set based at least in part on the priority of each of the set of frequencies. . The cell reselection component 118 can measure one or more cells on the frequency prioritized set based at least in part on the priority of each of the set of frequencies. For example, the frequency prioritized set 114 may be a list of frequencies ordered (or ranked) with respect to the corresponding priority of each frequency for evaluation in measuring the cell. In another example, frequency prioritized set 114 may include priorities (eg, numbering) indicated for the frequencies in the set. Accordingly, the cell reselection component 118 performs cell measurements on one or more frequencies in the frequency prioritized set 114 based on detecting one or more triggers for cell reselection. Can be executed. For example, cell measurements can substantially include any signal strength, quality, or similar measurements that can indicate the communication quality experienced by the cell if reselection is performed thereon. Measuring one or more cells in block 208 should be considered when measuring cells for reselection, as described, and / or cell reselection procedures, as described. It may be part of an autonomous search function performed with respect to determining the CSG cell.

  [0033] Similarly, in this regard, the method 200 also evaluates one or more cells for reselection at block 210 and reselects for one or more cells at block 212. Performing may optionally be included. Cell reselection component 118 may evaluate one or more cells for reselection and / or may perform reselection on one or more cells. For example, cell reselection component 118 may determine cell measurements and / or other parameters (eg, load) of one or more cells in determining whether to perform reselection for one or more cells. Indicators, other quality metrics, parameters received in broadcast messaging from the cell, etc.).

  [0034] In one example, deciding whether to lower the priority of one or more second frequencies at block 206 is at block 214 based at least in part on the command. May include lowering the priority. The lower priority command receiving component 116 may lower the priority of one or more second frequencies (eg, in the frequency prioritized set 114) based at least in part on the command. In this regard, if a frequency that has been prioritized as a CSG (eg, one or more first frequencies) includes a frequency that should be lowered in priority (eg, one or more second frequencies) Since the prioritized frequencies can be lowered in the prioritized set 114 of frequencies, the lowering priority command is honored by raising the priority of the CSG frequency. Thus, for example, measuring a cell at block 208 may be a reselection regardless of whether the prioritized frequency includes a frequency that has been prioritized as the frequency of the current or previous serving CSG cell. An autonomous search function for cell reselection, taking into account the frequency (for example, one or more second frequencies) whose priority has been lowered as the lowest priority frequency when measuring a cell for This may include excluding prioritized frequencies when performing, etc.

  [0035] In another example, deciding whether to lower the priority of one or more second frequencies at block 206 is to prioritize one or more second frequencies at block 216 regardless of the command. May include refraining from lowering the ranking. The lower priority command receiving component 116 may refrain from lowering the priority of one or more second frequencies (eg, in the frequency prioritized set 114) regardless of the command. In this regard, if a frequency that has been prioritized as a CSG (eg, one or more first frequencies) includes a frequency (eg, one or more second frequencies) that should be lowered in priority, Since the lowering command can be ignored, the priority raising of the frequency as the CSG frequency is observed by receiving the lowering priority command. Thus, for example, measuring cells in block 208 may be those of previously visited CSG cells in an autonomous search function as part of cell reselection, regardless of whether the frequency is indicated in the de-priority command. Detecting a prioritized frequency as. Further, in one example, measuring the cell at block 208 may cause the serving cell to be the highest priority frequency as part of the cell reselection and whether or not the serving frequency is indicated in the lower priority command. Detecting, where the UE is camping on a CSG cell (eg, a cell provided by the network node 104) on the serving frequency when measuring the cell.

  [0036] In another example, determining whether to lower the priority of one or more second frequencies in block 206 is based at least in part on one or more configured rules in block 218. Determining whether to lower the priority of one or more second frequencies. The cell reselection component 118 can determine whether to lower the priority of the one or more second frequencies based at least in part on the one or more configured rules. For example, the rule receiving component 120 may be one of whether to comply with a frequency priority determined as the frequency of a CSG cell visited prior to the frequency de-priority based on a de-priority command and / or vice versa. The above rules can be acquired. In one example, one or more rules may be configured in the UE 102 (eg, received from a network node during configuration of the UE 102 over the network, stored in subscription information or configuration for the UE 102 that is hard-coded in memory. Received from network node 104 in establishing communication with it, etc.). In one example, the rule providing component 132 generates and / or provides such rules to the UE 102, and the rule receiving component 120 can obtain one or more rules from the rule providing component 132 at this point.

  [0037] For example, the one or more rules may specify a default rule for whether to lower the priority of a frequency that has been prioritized as a frequency of a CSG cell based on a lower priority command, and / or This may be specified on a per frequency basis for one or more frequencies. In any case, the cell reselection component 118 may be included in one or more first frequencies in the prioritized set 114 of frequencies, taking into account the rules received by the rule reception component 120. One or more of the rules (eg, default rules, rules for a given frequency, etc.) may be applied in determining whether to lower the priority of one or more second frequencies.

  [0038] In another example, determining whether to lower the priority of one or more second frequencies in block 206 is at least partially in evaluating one or more communication parameters in block 220. Determining whether to lower the priority of one or more second frequencies based on. The parameter evaluation component 122 can determine whether to lower the priority of the one or more second frequencies based at least in part on evaluating the one or more communication parameters. For example, one or more communication parameters may relate to communicating with a serving cell (eg, a cell provided by network node 104), such as a received signal level (Srxlev) of the serving cell at UE. For example, the parameter evaluation component 122 can compare one or more communication parameters to a threshold in determining whether to lower the priority of one or more second frequencies. In a particular example, the parameter evaluation component 122 determines whether Srxlev reaches a threshold, and if so, the cell reselection component 118 prioritizes the frequency as the frequency of a previously visited CSG cell. The priority of one or more second frequencies in the prioritized set 114 may be at least temporarily reduced, regardless of whether or not it includes one or more selected first frequencies. . If Srxlev does not reach the threshold, the cell reselection component 118 indicates the frequency indicated in the priority reduction command that is also present in one or more first frequencies that have been prioritized as the frequency of the previously visited CSG cell. It is possible to refrain from lowering the priority order of at least temporarily. This allows the cell reselection component 118 to potentially reselect for a cell on the frequency of a previously visited CSG cell, where the serving cell's Srxlev does not reach the threshold.

  [0039] FIG. 3 illustrates a method 300 for prioritizing a set of frequencies for measuring a cell in cell reselection. The method 300 includes, in block 302, increasing the priority of the set of frequencies that measure the cells for reselection, wherein the one or more first frequencies in the set of frequencies are MBMS frequencies. Correspond. The frequency priority component 112 can increase the priority of a set of frequencies that measure the cells for reselection (e.g., in the frequency prioritized set 114), where the set of frequencies One or more of the first frequencies corresponds to the MBMS frequency. For example, the one or more first frequencies may include a serving frequency with which the UE 102 is communicating (in idle or active mode) with a cell capable of providing MBMS service, which is broadcast by the network node 104. One or more SIBs (eg, a service area identifier (SAI) for frequency in SIB 15), one or more universal service descriptions (USD) by the network node 104, and so on. In one example, the UE 102 is interested in receiving or receiving the MBMS service, and increasing the priority of the set of frequencies at this point will continue this MBMS service availability in the reselected cell. Based on the decision.

  [0040] Further, as described, the frequency prioritized set 114 may include one or more frequencies indicated in the priority of SIB broadcasts from the network node 104 or other network nodes. . In this case, for example, the frequency priority component 112 may select one corresponding to the MBMS frequency than shown in the signaling from the network node 104 in raising the priority of the set 114 that has been prioritized for frequency. The priority order of the first frequency can be increased. This raises the priority of one or more first frequencies in the prioritized set 114 of frequencies and / or generates another set of frequencies to be measured before that set. Can include.

  [0041] The method 300 may also include steps similar to those shown and described for the method 300 of FIG. 2, which in block 204 may include one or more second frequencies for reselection. Decreasing the priority of one or more second frequencies in the set of prioritized frequencies based at least in part on the command at block 206 Determining whether at block 208, measuring one or more cells over the prioritized set of frequencies based at least in part on the respective priorities of the set of frequencies, re-entering at block 210; Evaluating one or more cells for selection and / or one or more cells in block 212 Comprising performing a re-selected. Thus, as described above for the CSG frequency as well as the MBMS frequency, the priority reduction command reception component 116 can receive the command and the cell reselection component 118 can prioritize frequency based at least in part on the command. A decision may be made whether to lower the priority of one or more second frequencies in the prioritized set 114, and the cell reselection component 118 may select one over the prioritized set of frequencies. These cells can be measured, one or more cells can be evaluated, and / or reselection can be performed.

  [0042] Thus, for example, if the lower priority command received by the lower priority command reception component 116 (eg, at block 204) indicates one or more frequencies that have been prioritized as MBMS frequencies, the UE 102 The UE 102 may reselect for cells on another frequency according to the lower priority command, but the UE 102 may then increase the priority following the MBMS frequency and perform reselection for cells on the MBMS frequency. UE 102 may then receive again a priority reduction command for the MBMS frequency (or otherwise determine that the priority should be reduced based on the timer with which the MBMS frequency is associated), And may reselect for cells on other frequencies, etc. Accordingly, as further described herein, the cell reselection component 118 can determine whether to follow or ignore a priority reduction command for frequencies that have been prioritized as MBMS frequencies.

  [0043] In one example, deciding whether to lower the priority of one or more second frequencies at block 206 may include determining at block 214 one or more second frequencies based at least in part on the command. May include lowering the priority. As described, the prioritization command receiving component 116 may receive one or more second frequency priorities (eg, in the frequency prioritized set 114) based at least in part on the commands. Can be lowered. In this regard, included if the MBMS prioritized frequency (e.g., one or more first frequencies) includes a frequency (e.g., one or more second frequencies) whose priority should be lowered. Since the prioritized frequencies can be lowered in the prioritized set 114 of frequencies, the lower priority command is adhered to by raising the MBMS frequency priority. Thus, for example, measuring a cell in block 208 may depend on whether the prioritized frequency includes a frequency that has been prioritized as an MBMS frequency (eg, the frequency of a serving cell that provides an MBMS service). Without taking into account the lower priority frequency (eg, one or more second frequencies) as the lowest priority frequency when measuring a cell for reselection.

  [0044] In another example, deciding whether to lower the priority of one or more second frequencies at block 206 is to prioritize one or more second frequencies at block 216 regardless of the command. May include refraining from lowering the ranking. As described, the lower priority command receiving component 116 may decrease the priority of one or more second frequencies (eg, in the frequency prioritized set 114) regardless of the command. You can refrain. In this regard, if a frequency that has been prioritized as an MBMS frequency (eg, one or more first frequencies) includes a frequency that should be lowered in priority (eg, one or more second frequencies), Since the priority lowering command can be ignored, the priority raising of the frequency as the MBMS frequency is observed by receiving the priority lowering command. Thus, for example, measuring a cell at block 208 may indicate that the serving cell (eg, the cell provided by network node 104) has the highest priority regardless of whether the serving frequency is indicated in the priority reduction command. Detecting a serving frequency capable of providing an MBMS service as:

  [0045] Further, the method 300 may include, at block 304, determining the ability to receive MBMS services. The receive priority command receiving component 116 determines the UE's ability to receive MBMS services, which may affect the decision to reduce the priority of one or more second frequencies. In one example, the receive priority command receiving component 116 is provided with an MBMS service whether the UE 102 is capable of MBMS service continuity, whether the UE is receiving the MBMS service or interested in receiving it. Determining the ability to receive the MBMS service based on one or more configurations, such as whether the UE can receive the MBMS service while camping on a frequency that can be it can. For example, the priority reduction command receiving component 116 receives such parameters by the UE 102 from one or more network nodes configured at the UE 102 (eg, stored in the subscription information or memory of the UE 102 or hard-coded). Can be determined from configured, etc. Further, for example, the lower priority command receiving component 116 may determine that the measured cell is broadcasting the SIB 13 or that the SIB 15 of the serving cell (eg, a cell provided by the network node 104) is one of the frequencies included in the MBMS USD. The above MBMS SAI is shown and / or the ability to receive MBMS services may be determined based at least in part on whether the SIB 15 is not broadcast by the serving cell and the frequency is included in the USD. Thus, for example, the lower priority command receiving component 116 determines whether one or more of the above conditions are met in determining the ability to receive the MBMS service, and such ability is determined. If so, the lower priority command receiving component 116 may determine to refrain from lowering the priority of one or more second frequencies regardless of the command.

  [0046] In another example, determining whether to lower the priority of one or more second frequencies in block 206 is based at least in part on one or more configured rules in block 218. Determining whether to lower the priority of one or more second frequencies. Cell reselection component 118 may determine whether to lower the priority of one or more second frequencies based at least in part on one or more configured rules, as described. For example, the rule receiving component 120 obtains one or more rules regarding whether to comply with a frequency priority determined as an MBMS frequency from a frequency priority reduction based on a priority reduction command and / or vice versa. be able to. In one example, one or more rules may be configured in the UE 102 (eg, received from a network node during configuration of the UE 102 over the network, stored in subscription information or configuration for the UE 102 that is hard-coded in memory. Received from network node 104 in establishing communication with it, etc.). For example, one or more rules may specify a default rule for whether to lower the priority of a frequency that has been prioritized as an MBMS frequency based on a lower priority command, and / or one or more frequencies This can be specified for each frequency. In any case, the cell reselection component 118 may be included in one or more first frequencies in the prioritized set 114 of frequencies, taking into account the rules received by the rule reception component 120. One or more of the rules (eg, default rules, rules for a given frequency, etc.) may be applied in determining whether to lower the priority of one or more second frequencies. Further, in one example, this can include a lower priority command receiving component 116 that determines the ability to receive MBMS services, as described above.

  [0047] In another example, deciding whether to lower the priority of one or more second frequencies at block 206 is at least partially at evaluating one or more communication parameters at block 220. Determining whether to lower the priority of one or more second frequencies based on. Parameter evaluation component 122 can determine whether to lower the priority of one or more second frequencies based at least in part on evaluating one or more communication parameters, as described. . For example, as described, one or more communication parameters may be in communication with a serving cell (eg, a cell provided by network node 104), such as the received signal level (Srxlev) of the serving cell at UE 102. May be related. In a particular example, the parameter evaluation component 122 determines whether Srxlev reaches a threshold, and if so, the cell reselection component 118 can determine whether the frequency has been prioritized as an MBMS frequency. Regardless of whether or not it includes the first frequency, the priority of one or more second frequencies in the set 114 that has been prioritized for frequency can be lowered at least temporarily. If Srxlev does not reach the threshold, the cell reselection component 118 lowers the priority of the frequency indicated in the lower priority command that is also present in one or more first frequencies that have been prioritized as MBMS frequencies. At least temporarily. Further, in one example, this can include a lower priority command receiving component 116 that determines the ability to receive MBMS services, as described above.

  FIG. 4 is a conceptual diagram illustrating an example of hardware implementation for an apparatus 400 that uses the processing system 414. In some examples, the processing system 414 may comprise a UE, a network node, etc., or a component of the UE (eg, UE 102 of FIG. 1), a component of the network node 104 (eg, network node 104 of FIG. 1). In this example, processing system 414 may be implemented with a bus architecture generally represented by bus 402. Bus 402 may include any number of interconnecting buses and bridges depending on the particular application of processing system 414 and the overall design constraints. Bus 402 includes various one or more processors, generally represented by processor 404, a computer-readable medium generally represented by computer-readable medium 406, communication component 110, communication component 130 (FIG. 1), its components, and the like. Linking the circuits together, it may be configured to perform one or more methods or means described herein (eg, method 200 (FIG. 2), method 300 (FIG. 3), etc.).

  [0049] The bus 402 may also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art. Bus interface 408 provides an interface between bus 402 and transceiver 410. The transceiver 410 provides a means for communicating with various other devices over a transmission medium. In one example, the transceiver 410 can include or perform functions of the communication component 110, the communication component 130 (FIG. 1), etc., as described herein, which is a method 200 (FIG. 2). , Method 300 (FIG. 3), etc. Depending on the nature of the device, a user interface 412 (eg, keypad, display, speaker, microphone, joystick) may also be provided.

  [0050] The processor 404 is responsible for general processing including management of the bus 402 and execution of software stored on the computer-readable medium 406. This software, when executed by the processor 404, causes the processing system 414 to perform various functions described below with respect to any particular device. The computer readable medium 406 may also be used to store data that is manipulated by the processor 404 when executing software.

  [0051] In an aspect, the processor 404, the computer readable medium 406, or a combination of both perform the functions of the communication component 110, the communication component 130, its components, or various other components described herein. Or may be specifically programmed as such. For example, processor 404, computer readable medium 406, or a combination of both perform the functions of communication component 110, communication component 130, its components, or various other components, and / or the like, as described herein. Or may be specifically programmed to do so. Thus, in one example, processor 404 performs functions of frequency priority component 112, priority reduction command receiving component 116, cell reselection component 118, rule receiving component 120, parameter evaluation component 122, rule providing component 123, and the like. 2, which are blocks 202, 204, 206, 208, 212, 214, 216, 218, 220, etc. in FIG. 2, such as blocks 302, 304, 204, 206, 208, 210, 212 in FIG. 3. , 214, 216, 218, 220, etc.

  FIG. 5 is a block diagram of an embodiment of eNB 510 and UE 550 in MIMO system 500. For example, eNB 510 may include one or more components thereof, such as network node 104 and / or communication component 130, as described herein. Similarly, UE 550 may perform cell reselection from a cell of UE 102 and / or eNB 510 to another cell, or communication component 110 for at least measuring a cell for that possible reselection, etc. Including one or more of its components, which may be based on determining a prioritization of a set of frequencies, as described herein. At eNB system 510, traffic data for several data streams is provided from a data source 512 to a transmit (TX) data processor 514.

  [0053] In one embodiment, each data stream is transmitted via a respective transmit antenna. TX data processor 514 formats, encodes, and interleaves the traffic data for that data stream based on the particular coding scheme selected for each data stream to provide coded data. .

  [0054] The coded data for each data stream may be multiplexed with pilot data using OFDM techniques. The pilot data is typically a known data pattern that is processed in a known manner and may be used at the receiver system to estimate the channel response. The multiplexed pilot and coded data for each data stream is then sent to the specific modulation scheme (eg, BPSK, QPSP, M-PSK, or M-QAM) selected for that data stream. Based on the modulation (ie, symbol mapping), a modulation symbol is provided. The data rate, coding, and modulation for each data stream may be determined by instructions executed by processor 530.

[0055] Modulation symbols for all data streams are then provided to TX MIMO processor 520, which may further process the modulation symbols (eg, for OFDM). TX MIMO processor 520 then provides _{N T} modulation symbol streams to _{N T} transmitters to (TMTR) 522a~522t. In certain embodiments, TX MIMO processor 520 applies beamforming weights to the symbols of the data stream and the antenna from which the symbols are transmitted.

[0056] Each transmitter 522 receives and processes a respective symbol stream to provide one or more analog signals, and further adjusts (eg, amplifies, filters, and upconverts) the analog signals. Provides a modulated signal suitable for transmission over a MIMO channel. N _T modulated signals from transmitters 522a through 522t are then transmitted from N _T antennas 524a through 524t, respectively.

In [0057] UE550, modulated signals transmitted are received by _{N R} antennas 552A～552r, the received signal from each antenna 552 is provided to a respective receiver (RCVR) 554a~554r The Each receiver 554 adjusts (eg, filters, amplifies, and downconverts) the respective received signal, digitizes the adjusted signal to provide samples, and further processes the samples for corresponding To provide a “received” symbol stream.

[0058] Then, RX data processor 560 based on a particular receiver processing technique to receive and process the N _R received symbol streams from N _R receivers 554, N _T number of " Provide a “detected” symbol stream. RX data processor 560 then demodulates, deinterleaves, and decodes each detected symbol stream to recover the traffic data for the data stream. The processing by RX data processor 560 is complementary to that performed by TX MIMO processor 520 and TX data processor 514 at eNB 510.

  [0059] The processor 570 periodically determines which precoding matrix to use (described below). The processor 570 forms a reverse link message comprising a matrix index portion and a rank value portion.

  [0060] The reverse link message may comprise various types of information regarding the communication link and / or the received data stream. The reverse link message is then processed by TX data processor 538, which also receives traffic data for several data streams from data source 536, is modulated by modulator 580, and coordinated by transmitters 554a-554r. , Sent back to eNB 510.

  [0061] At eNB 510, the modulated signal from UE 550 is received by antenna 524, conditioned by receiver 522, demodulated by demodulator 540, and extracted to reverse link message transmitted by UE 550. Processed by the data processor 542. The processor 530 then determines which precoding matrix to use to determine the beamforming weights and then processes the extracted message.

  [0062] Some aspects of a telecommunications system are presented with reference to a W-CDMA system. Those skilled in the art will readily recognize that the various aspects described herein can be extended to other telecommunications systems, network architectures, and communication standards.

  [0063] By way of example, the various aspects described herein include W-CDMA, TD-SCDMA, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), High Speed Packet Access Plus (HSPA + ) And TD-CDMA, and can be extended to other UMTS systems. Various aspects may also include Long Term Evolution (LTE) (in FDD, TDD, or both modes), LTE Advanced (LTE-A) (in FDD, TDD, or both modes), CDMA2000, Evolution-Data Optimized (in EV-DO), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Ultra Wide Band (UWB), Bluetooth, and / or other appropriate Can be extended to systems using other systems. The actual telecommunication standard, network architecture, and / or communication standard used will depend on the overall design constraints imposed on the system and the specific application.

  [0064] In accordance with various disclosed aspects described herein, an element, or any portion of an element, or any combination of elements may be implemented in a "processing system" that includes one or more processors. . Examples of processors are microprocessors, microcontrollers, digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gate logic, discrete hardware circuits, and described herein. Other suitable hardware configured to perform the various functions described. One or more processors in the processing system may execute software. Software, whether called by software, firmware, middleware, microcode, hardware description language, or other names, instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, It should be interpreted broadly to mean applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc. The software may reside on a computer readable medium. The computer readable medium may be a non-transitory computer readable medium. Non-transitory computer readable media include, by way of example, magnetic storage devices (eg, hard disks, floppy disks, magnetic strips), optical, for storing software and / or instructions that can be accessed and read by a computer. Discs (eg, compact discs (CD), digital versatile discs (DVD)), smart cards, flash memory devices (eg, cards, sticks, key drives), random access memory (RAM), read only memory (ROM), Includes programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), registers, removable disks, and any other suitable media. Computer-readable media may also include, by way of example, carrier waves, transmission lines, and any other suitable media for transmitting software and / or instructions that can be accessed and read by a computer. The computer readable medium may be distributed within a processing system, external to the processing system, or across multiple entities including the processing system. The computer readable medium may be embodied in a computer program product. By way of example, a computer program product may include a computer readable medium in packaging material. Those skilled in the art will recognize how best to implement the functionality described herein, depending on the particular application and overall design constraints imposed on the overall system.

  [0065] It should be understood that the specific order or hierarchy of steps in the methods disclosed is illustrative of an exemplary process. Based on design preferences, it is understood that the specific order or hierarchy of steps in the methods or methodologies described herein may be rearranged. The accompanying method claims present elements of the various steps in a sample order, and are intended to be limited to the specific order or hierarchy presented, unless explicitly stated herein. It is not a thing.

[0066] The previous description is provided to enable any person skilled in the art to implement the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects. Accordingly, the claims are not intended to be limited to the embodiments shown herein, but are to be accorded the full scope consistent with the language of the claims, where a single element References to are not intended to mean “one and only one” unless expressly stated otherwise, but rather are intended to mean “one or more”. Unless expressly stated otherwise, the term “several” means one or more. The expression for “at least one of” a list of items refers to any combination of those items that includes a single element. By way of example, “at least one of a, b or c” is intended to cover a; b; c; a and b; a and c; b and c; and a, b and c. . All structural and functional equivalents to the elements of the various embodiments described herein that are known to those skilled in the art or that are later known are expressly incorporated herein by reference and are It is intended to be covered by the scope of Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether expressly recited in the claims. Any element of a claim, unless the element is explicitly stated using the phrase “means for” or in the case of a method claim, It is not to be construed under the provisions of 35 USC 112 (f) unless stated using the phrase "steps to do."
The invention described in the scope of claims at the beginning of the filing of the present application will be appended.
[C1]
A method for determining a frequency for measuring a cell in reselection, comprising:
Raising the priority of a set of frequencies measuring cells for reselection, wherein one or more first frequencies in the set of frequencies are a previously visited closed subscriber group (CSG) Corresponding to the cell frequency of
Receiving a command to lower the priority of one or more second frequencies for reselection;
Determining whether to lower the priority of the one or more second frequencies in the prioritized set of frequencies based at least in part on the command;
Measuring one or more cells across the prioritized set of frequencies based at least in part on the priority of each of the sets of frequencies;
Evaluating the one or more cells for reselection;
A method comprising:
[C2]
The method of C1, wherein determining whether to lower the priority of the one or more second frequencies comprises evaluating one or more parameters associated with communicating with a serving cell.
[C3]
The method of C2, wherein the one or more parameters include a quality of communicating with the serving cell.
[C4]
Determining whether to lower the priority of the one or more second frequencies is to determine to exclude the one or more second frequencies when measuring one or more cells. The measuring the one or more cells comprises performing an autonomous search function over the remaining portion of the one or more first frequencies in the prioritized set of frequencies. , C1.
[C5]
Determining whether to lower the priority of the one or more second frequencies is independent of the command of the one or more second frequencies in the prioritized set of frequencies. The method of C1, comprising refraining from lowering the priority.
[C6]
The method of C5, wherein the measuring the one or more cells comprises performing an autonomous search function across the prioritized set of frequencies.
[C7]
Determining whether to lower the priority of the one or more second frequencies is based at least in part on one or more rules specific to at least a portion of the one or more first frequencies, C1 The method described in 1.
[C8]
The method of C7, further comprising receiving the one or more rules from one or more network nodes.
[C9]
An apparatus for determining a frequency for measuring a cell in reselection, comprising:
A frequency priority component configured to increase the priority of a set of frequencies measuring cells for reselection, wherein one or more first frequencies in the set of frequencies visited previously Corresponding to the frequency of a closed subscriber group (CSG) cell,
Receiving a command to lower the priority of one or more second frequencies for reselection, and said 1 in the prioritized set of frequencies based at least in part on the command A lower priority command receiving component configured to determine whether to lower the priority of two or more second frequencies;
Measuring one or more cells over the prioritized set of frequencies based at least in part on a priority of each of the sets of frequencies, and determining the one or more cells for reselection A cell reselection component configured to evaluate and
An apparatus comprising:
[C10]
The priority reduction command receiving component may reduce the priority of the one or more second frequencies by evaluating, at least in part, one or more parameters associated with communicating with the serving cell. The apparatus of C9, configured to determine whether.
[C11]
The apparatus of C10, wherein the one or more parameters include a quality of communicating with the serving cell.
[C12]
The lower priority command receiving component is configured to exclude the one or more second frequencies in the measurement of one or more cells, the cell reselection component at least in part, Configured to measure the one or more cells by performing an autonomous search function over the remainder of the one or more first frequencies in the prioritized set of frequencies. The device according to C9.
[C13]
The lower priority command receiving component is configured to refrain from lowering the priority of the one or more second frequencies in the prioritized set of frequencies regardless of the command. The device according to C9.
[C14]
The C-reselection component is configured to measure the one or more cells by performing an autonomous search function over the prioritized set of frequencies at least in part. Equipment.
[C15]
The lower priority command receiving component lowers the priority of the one or more second frequencies based at least in part on one or more rules specific to at least a portion of the one or more first frequencies. The apparatus of C9, configured to determine whether or not.
[C16]
The apparatus of C15, further comprising a rule receiving component configured to receive the one or more rules from one or more network nodes.
[C17]
A method for determining a frequency for measuring a cell in reselection, comprising:
Raising the priority of a set of frequencies measuring cells for reselection, wherein one or more first frequencies in the set of frequencies correspond to a Multimedia Broadcast Multicast Service (MBMS) frequency To
Receiving a command to lower the priority of one or more second frequencies for reselection;
Determining whether to lower the priority of the one or more second frequencies in the prioritized set of frequencies based at least in part on the command;
Measuring one or more cells across the prioritized set of frequencies based at least in part on the priority of each of the sets of frequencies;
Evaluating the one or more cells for reselection;
A method comprising:
[C18]
The method of C17, wherein determining whether to lower the priority of the one or more second frequencies comprises evaluating one or more parameters associated with communicating with a serving cell.
[C19]
The method of C18, wherein the one or more parameters include a quality of communicating with the serving cell.
[C20]
Determining whether to lower the priority of the one or more second frequencies is determined to lower the priority of the one or more second frequencies when measuring one or more cells. The method of C17, comprising:
[C21]
Determining whether to lower the priority of the one or more second frequencies is independent of the command of the one or more second frequencies in the prioritized set of frequencies. The method of C17, comprising refraining from lowering the priority.
[C22]
Determining whether to lower the priority of the one or more second frequencies is based at least in part on one or more rules specific to at least a portion of the one or more first frequencies, C17 The method described in 1.
[C23]
The method of C22, further comprising receiving the one or more rules from one or more network nodes.
[C24]
An apparatus for determining a frequency for measuring a cell in reselection, comprising:
A frequency priority component configured to increase the priority of a set of frequencies measuring cells for reselection, wherein one or more first frequencies in the set of frequencies are multimedia broadcasts; Corresponding to the Multicast Service (MBMS) frequency,
Receiving a command to lower the priority of one or more second frequencies for reselection, and said 1 in the prioritized set of frequencies based at least in part on the command A lower priority command receiving component configured to determine whether to lower the priority of two or more second frequencies;
Measuring one or more cells over the prioritized set of frequencies based at least in part on a priority of each of the sets of frequencies, and determining the one or more cells for reselection A cell reselection component configured to evaluate and
An apparatus comprising:
[C25]
The priority reduction command receiving component may reduce the priority of the one or more second frequencies by evaluating, at least in part, one or more parameters associated with communicating with the serving cell. The apparatus of C24, configured to determine whether.
[C26]
The apparatus of C25, wherein the one or more parameters include a quality of communicating with the serving cell.
[C27]
The apparatus of C24, wherein the lower priority command receiving component is configured to determine to lower the priority of the one or more second frequencies in the measurement of one or more cells.
[C28]
The lower priority command receiving component is configured to refrain from lowering the priority of the one or more second frequencies in the prioritized set of frequencies regardless of the command. The device according to C24.
[C29]
The lower priority command receiving component lowers the priority of the one or more second frequencies based at least in part on one or more rules specific to at least a portion of the one or more first frequencies. The apparatus of C24, configured to determine whether or not.
[C30]
The apparatus of C29, further comprising a rule receiving component configured to receive the one or more rules from one or more network nodes.

Claims (22)

A method for determining a frequency for measuring a cell in reselection, comprising:
Raising the priority of a set of frequencies measuring cells for reselection, wherein one or more first frequencies in the set of frequencies are a previously visited closed subscriber group (CSG) Corresponding to the cell frequency of
Receiving one or more rules specific to at least a portion of the one or more first frequencies from one or more network nodes;
Receiving a command to lower the priority of one or more second frequencies for reselection;
Whether to lower the priority of the one or more second frequencies in the prioritized set of frequencies based at least in part on the command, to the one or more rules at least in part. To make decisions based on
Measuring one or more cells across the prioritized set of frequencies based at least in part on the priority of each of the sets of frequencies;
Evaluating the one or more cells for reselection.   The method of claim 1, wherein determining whether to lower the priority of the one or more second frequencies comprises evaluating one or more parameters associated with communicating with a serving cell. Method.   The method of claim 2, wherein the one or more parameters include a quality of communicating with the serving cell.   Determining whether to lower the priority of the one or more second frequencies is to determine to exclude the one or more second frequencies when measuring one or more cells. The measuring the one or more cells comprises performing an autonomous search function over the remaining portion of the one or more first frequencies in the prioritized set of frequencies. The method of claim 1.   Determining whether to lower the priority of the one or more second frequencies is independent of the command of the one or more second frequencies in the prioritized set of frequencies. The method of claim 1, comprising refraining from lowering priority.   The method of claim 5, wherein the measuring the one or more cells comprises performing an autonomous search function across the prioritized set of frequencies. An apparatus for determining a frequency for measuring a cell in reselection, comprising:
A frequency priority component configured to increase the priority of a set of frequencies measuring cells for reselection, wherein one or more first frequencies in the set of frequencies visited previously Corresponding to the frequency of a closed subscriber group (CSG) cell,
A rule receiving component configured to receive one or more rules specific to at least a portion of the one or more first frequencies from one or more network nodes;
Receiving a command to lower the priority of one or more second frequencies for reselection, and said 1 in the prioritized set of frequencies based at least in part on the command A lower priority command receiving component configured to determine whether to lower the priority of one or more second frequencies based at least in part on the one or more rules ;
Measuring one or more cells over the prioritized set of frequencies based at least in part on a priority of each of the sets of frequencies, and determining the one or more cells for reselection And a cell reselection component configured to perform the evaluation. The priority reduction command receiving component may reduce the priority of the one or more second frequencies by evaluating, at least in part, one or more parameters associated with communicating with the serving cell. The apparatus of claim 7 , configured to determine whether. The apparatus of claim 8 , wherein the one or more parameters include a quality of communicating with the serving cell. The lower priority command receiving component is configured to exclude the one or more second frequencies in the measurement of one or more cells, the cell reselection component at least in part, Configured to measure the one or more cells by performing an autonomous search function over the remainder of the one or more first frequencies in the prioritized set of frequencies. The apparatus according to claim 7 . The lower priority command receiving component is configured to refrain from lowering the priority of the one or more second frequencies in the prioritized set of frequencies regardless of the command. The apparatus according to claim 7 . The cell reselection component, at least in part, by performing an autonomous search function across a set of raised the priority of the frequency, configured to measure the one or more cells, according to claim 11 The device described in 1. A method for determining a frequency for measuring a cell in reselection, comprising:
Raising the priority of a set of frequencies measuring cells for reselection, wherein one or more first frequencies in the set of frequencies correspond to a multimedia broadcast multicast service (MBMS) frequency To
Receiving one or more rules specific to at least a portion of the one or more first frequencies from one or more network nodes;
Receiving a command to lower the priority of one or more second frequencies for reselection;
Whether to lower the priority of the one or more second frequencies in the prioritized set of frequencies based at least in part on the command, to the one or more rules at least in part. To make decisions based on
Measuring one or more cells across the prioritized set of frequencies based at least in part on the priority of each of the sets of frequencies;
Evaluating the one or more cells for reselection. The method of claim 13 , wherein determining whether to lower the priority of the one or more second frequencies comprises evaluating one or more parameters associated with communicating with a serving cell. Method. The method of claim 14 , wherein the one or more parameters include a quality of communicating with the serving cell. Determining whether to lower the priority of the one or more second frequencies is determined to lower the priority of the one or more second frequencies when measuring one or more cells. 14. The method of claim 13 , comprising: Determining whether to lower the priority of the one or more second frequencies is independent of the command of the one or more second frequencies in the prioritized set of frequencies. 14. The method of claim 13 , comprising refraining from lowering priority. An apparatus for determining a frequency for measuring a cell in reselection, comprising:
A frequency priority component configured to increase the priority of a set of frequencies measuring cells for reselection, wherein one or more first frequencies in the set of frequencies are multimedia broadcasts; Corresponding to the Multicast Service (MBMS) frequency,
A rule receiving component configured to receive one or more rules specific to at least a portion of the one or more first frequencies from one or more network nodes;
Receiving a command to lower the priority of one or more second frequencies for reselection, and said 1 in the prioritized set of frequencies based at least in part on the command A lower priority command receiving component configured to determine whether to lower the priority of one or more second frequencies based at least in part on the one or more rules ;
Measuring one or more cells over the prioritized set of frequencies based at least in part on a priority of each of the sets of frequencies, and determining the one or more cells for reselection And a cell reselection component configured to perform the evaluation. The priority reduction command receiving component may reduce the priority of the one or more second frequencies by evaluating, at least in part, one or more parameters associated with communicating with the serving cell. The apparatus of claim 18 , configured to determine whether. The apparatus of claim 19 , wherein the one or more parameters include a quality of communicating with the serving cell. The priority lower command receiving component, when said measuring one or more cells, said configured to determine and reduce the one or more second frequency priority, according to claim 18 apparatus. The lower priority command receiving component is configured to refrain from lowering the priority of the one or more second frequencies in the prioritized set of frequencies regardless of the command. The apparatus according to claim 18 .

Images